| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- G N A T . C O M P I L E R _ V E R S I O N -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 2002-2010, AdaCore -- |
| -- -- |
| -- GNAT is free software; you can redistribute it and/or modify it under -- |
| -- terms of the GNU General Public License as published by the Free Soft- -- |
| -- ware Foundation; either version 3, or (at your option) any later ver- -- |
| -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| -- or FITNESS FOR A PARTICULAR PURPOSE. -- |
| -- -- |
| -- As a special exception under Section 7 of GPL version 3, you are granted -- |
| -- additional permissions described in the GCC Runtime Library Exception, -- |
| -- version 3.1, as published by the Free Software Foundation. -- |
| -- -- |
| -- You should have received a copy of the GNU General Public License and -- |
| -- a copy of the GCC Runtime Library Exception along with this program; -- |
| -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- |
| -- <http://www.gnu.org/licenses/>. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- This package provides a routine for obtaining the version number of the |
| -- GNAT compiler used to compile the program. It relies on the generated |
| -- constant in the binder generated package that records this information. |
| |
| package body GNAT.Compiler_Version is |
| |
| Ver_Len_Max : constant := 256; |
| -- This is logically a reference to Gnatvsn.Ver_Len_Max but we cannot |
| -- import this directly since run-time units cannot WITH compiler units. |
| |
| Ver_Prefix : constant String := "GNAT Version: "; |
| -- This is logically a reference to Gnatvsn.Ver_Prefix but we cannot |
| -- import this directly since run-time units cannot WITH compiler units. |
| |
| GNAT_Version : constant String (1 .. Ver_Len_Max + Ver_Prefix'Length); |
| pragma Import (C, GNAT_Version, "__gnat_version"); |
| |
| ------------- |
| -- Version -- |
| ------------- |
| |
| function Version return String is |
| begin |
| -- Search for terminating right paren or NUL ending the string |
| |
| for J in Ver_Prefix'Length + 1 .. GNAT_Version'Last loop |
| if GNAT_Version (J) = ')' then |
| return GNAT_Version (Ver_Prefix'Length + 1 .. J); |
| end if; |
| |
| if GNAT_Version (J) = Character'Val (0) then |
| return GNAT_Version (Ver_Prefix'Length + 1 .. J - 1); |
| end if; |
| end loop; |
| |
| -- This should not happen (no right paren or NUL found) |
| |
| return GNAT_Version; |
| end Version; |
| |
| end GNAT.Compiler_Version; |
